Question # 1

The current used in houses is:

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A.C.

Conventiona current

Current

D.C

Half of radius of curvature is called:

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Focal length

Principal focus

Axis

Aperture

What happens to the intensity of the brightness of the lamps connected in series as more and more lamps are added?

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Increases

Decreases

Remains the same

Can not be predicted

Electric potential and e.m.f.

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are the same terms

are the different terms

have different units

both b and c

The sensation of sound persists in our brain for:

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0.1 sec

0.01 sec

1 sec

10 sec

In medical field, C.R.O is used to display:

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Heart beats

Pictures of organs

Pictures of bones

Blood pressure

Specific resistance of copper is ____________ x 10^-8Ohm-meter

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1.62

1.69

5.25

2.75

Which instrument measures the potential difference:

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Voltmeter

Barometer

Galvanometer

Ammeter

The S.I unit of potential difference is:

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Ampere

Coulomb

Volt

Watt

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Physics 10th Class English Medium Unit 5 Online Test MCQs With Answers

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